--- src/usr.bin/tail/reverse.c	2005/03/01 21:37:33	1.4
+++ src/usr.bin/tail/reverse.c	2006/08/13 02:12:18	1.5
@@ -205,8 +205,10 @@ r_buf(FILE *fp)
 			tl->prev = mark->prev;
 			mark->prev->next = tl;
 			mark->prev = tl;
-		} else
-			mark->next = mark->prev = (mark = tl);
+		} else {
+			mark = tl;
+			mark->next = mark->prev = mark;
+		}
 
 		/* Fill the block with input data. */
 		for (p = tl->l, len = 0;